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NAERINGSPH-Nærings-phd

Improved operability and decision making for weather sensitive marine operations

Alternative title: Forbedret operabilitet og beslutningsprosess for værsensitive marine operasjoner

Awarded: NOK 1.8 mill.

Project Number:

336166

Application Type:

Project Period:

2022 - 2025

Funding received from:

Location:

Subsea 7 is a global leader in the delivery of offshore projects and services for the evolving energy industry. Offshore work is often sensitive to weather conditions, and progress is frequently delayed when conditions are outside workable limits. Delays in project execution caused by weather is costly due to the high day rates of installation vessels, delayed project completion, and subsequent delays on following work. Conversely, operation in weather conditions that are too severe may cause damage to the products that are being installed, the installation vessel, and potentially be a risk to offshore personnel. The proposed PhD work intends to improve the accuracy in determining workable weather limits using response forecasting, and improve the accuracy of operability calculations, i.e. early prediction of delays caused by weather waiting.

Subsea 7 is a global leader in the delivery of offshore projects and services for the evolving energy industry. Offshore work is often sensitive to weather conditions, and progress is frequently delayed when conditions are outside workable limits. Delays in project execution caused by weather is costly due to the high value of installation vessels, delayed project completion, and subsequent delays on following work. Conversely, operation in weather conditions that are too severe may cause damage to the products that are being installed, the installation vessel, and potentially be a risk to offshore personnel. The proposed PhD work intends to improve the accuracy in determining workable weather limits using response forecasting, and improve the accuracy of operability calculations, i.e. early prediction of delays caused by weather waiting. Response forecasting is a method to simulate offshore operations using forecasted weather conditions. This is challenging since a significant amount of calculations is needed within a short time frame from receiving new forecast data, and new methods for efficient processing is required for practical implementation of the method. In order to estimate weather waiting at an early stage of a project, historical weather data is applied to a complex, but preliminary, vessel schedule. Further effort is required to understand the accuracy of which it is possible to make such predictions, and to find opportunities for improving the accuracy by looking at the main sources of error. Results from operability calculations need to be presented in a way that is useful for evaluating the associated commercial risk.

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Funding scheme:

NAERINGSPH-Nærings-phd